Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000mnras.312...51m&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 312, Issue 1, pp. 51-56.
Astronomy and Astrophysics
Astronomy
14
Plasmas, Radiation Mechanisms: Non-Thermal, Pulsars: General, Gamma-Rays: Theory<X>.</X>
Scientific paper
Gamma-ray emission in pulsar magnetospheres is attributed to synchrotron radiation, which tends to decrease the pitch angle of the particle, being balanced by plasma processes tending to increase the pitch angle. The plasma processes are non-resonant instabilities that drive non-resonant quasilinear diffusion (NQD), thereby pumping energy from waves and the parallel motion of the particle into the perpendicular motion of the particle. It is shown that NQD can maintain the pitch angles for particles near the light-cylinder such that they radiate synchrotron radiation at MeV energies. Compared to conventional emission mechanisms (such as polar cap or outer gap models), the resulting spectrum has a relatively low upper cut-off from about a few to 100MeV. Possible observational consequences of this mechanism are discussed.
Luo Qinghuan
Machabeli George Z.
Melrose Donald B.
Vladimirov Sergey
No associations
LandOfFree
A new mechanism for pulsar gamma-ray emission does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A new mechanism for pulsar gamma-ray emission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A new mechanism for pulsar gamma-ray emission will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1496118